Harman Tuğlalı Yığma Binada Duvarların Kayma Gerilmesi Ve İçsel Sürtünme Katsayisinin Deneysel Araştırılması

Yıl 2019, Cilt: 11 Sayı: 2, 670 - 676, 30.06.2019

Orhan Gazi Odacıoğlu Orhan Doğan

https://doi.org/10.29137/umagd.545396

Cited By: 2

Öz

An Experimental Study To Determine Sliding Shear Strength And Internal Frictional Coefficient Of Clay Brick Wall In A Masonry Building

Öz

96% of the available buildings in use in Turkey are taking place in the
earthquake zone and approximately 50% of them an masonry structures built using
bricks. Sliding shear strength and internal friction coefficient were taken as
a constant value in Turkish Earthquake Code (TSC 2007) depending on the type
and hole rate of the brick section regardless of available compressive strength
of the brick, mortar and plaster of a wall. But nowadays these values are
recommended to be taken according to the compressive strength of mortar in TSC-2018.
In addition, with this study it is recommended that, to evaluate the
performance of a building against earthquake, the mechanical properties of the
materials used for a building must be determined on site with series of tests. It
is well-known that for each building mechanical properties of mortar and plaster
are variable because of site work conditions.

 

In this study, a couple of
 tests were conducted in different
storeys of a five-storey-masonry building representing the clay brick masonry
buildings in the country built in the 1950s, to determine the sliding shear strength
and internal frictional coefficient, using a similar method to shove test. With
the increment of axially vertical load from upper storey to lower storey, the
shear capacity occurs in lower storey more than upper storey. In order to
determine a characteristic shear force for the building, it has been revised
considering the lowest compressive strength of mortar in the storeys. Related
with the internal friction coefficient obtained, a quite good correlation was
found between the results and the standards. However, the sliding shear
strength was found to be approximately three times higher than TSC 2007 and
about two times higher than TSC 2018. This means that, the limits recommended
in the standards are much safer than results obtained from the tests.

Anahtar Kelimeler

Masonry Building, Sliding Shear Strength, Risk Analysis of Masonry Buildings, Clay Bricks, Internal Frictional Coefficient, Shove Test

Kaynakça

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